2. Introduce a 0.035 inch, 260-cm exchange-length J-tipped Terumo wire into the angiographic catheter and advance the wire into a distal lobar or proximal segmental branch by crossing the occlusion site. Confirm wire position in the main and lobar pulmonary arteries using a manual injection of 5-10 ml contrast. Remove the angiographic catheter and introduce the Aspirex catheter device over the wire using a torquer to hold the Terumo wire in place.